From 1375b7c758a588c2a1c958a157ba726d479da146 Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Tue, 3 Apr 2001 09:19:10 +0000
Subject: [PATCH] Fixes for comedi_rt_timer.  Still needs work; doesn't even
 compile right now.

---
 comedi/Config.in                 |  2 +-
 comedi/drivers/Makefile          |  4 +--
 comedi/drivers/comedi_rt_timer.c | 43 +++++++++++++++++++-------------
 3 files changed, 28 insertions(+), 21 deletions(-)

diff --git a/comedi/Config.in b/comedi/Config.in
index 937e3c4b..86c1ee4b 100644
--- a/comedi/Config.in
+++ b/comedi/Config.in
@@ -106,6 +106,6 @@ dep_tristate 'Generic ISA driver for simple boards' CONFIG_COMEDI_POC $CONFIG_CO
 dep_tristate 'Skeleton driver' CONFIG_COMEDI_SKEL $CONFIG_COMEDI
 
 if [ "$CONFIG_COMEDI_RT" = "y" ];then
-	dep_tristate 'Real-time command emulator (timer)' CONFIG_COMEDI_XXX $CONFIG_COMEDI
+	dep_tristate 'Real-time command emulator (timer)' CONFIG_COMEDI_RT_TIMER $CONFIG_COMEDI
 fi
 
diff --git a/comedi/drivers/Makefile b/comedi/drivers/Makefile
index d6b1e48a..b68ceed8 100644
--- a/comedi/drivers/Makefile
+++ b/comedi/drivers/Makefile
@@ -70,13 +70,13 @@ obj-$(CONFIG_COMEDI_QUATECH_DAQP)	+= quatech_daqp_cs.o
 
 obj-$(CONFIG_COMEDI_PARPORT)		+= comedi_parport.o
 
+obj-$(CONFIG_COMEDI_RT_TIMER)		+= comedi_rt_timer.o
+
 obj-$(CONFIG_COMEDI_RTI800)		+= rti800.o
 obj-$(CONFIG_COMEDI_RTI802)		+= rti802.o
 
 obj-$(CONFIG_COMEDI_SKEL)		+= skel.o
 
-obj-$(CONFIG_COMEDI_RT_TIMER)		+= comedi_rt_timer.o
-
 #obj-m += $(obj-y)
 
 O_OBJS		:= $(sort $(filter-out $(export-objs), $(obj-y)))
diff --git a/comedi/drivers/comedi_rt_timer.c b/comedi/drivers/comedi_rt_timer.c
index a041ed03..2a09d791 100644
--- a/comedi/drivers/comedi_rt_timer.c
+++ b/comedi/drivers/comedi_rt_timer.c
@@ -23,15 +23,7 @@
 
 
 #include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/malloc.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/timer.h>
+#include <linux/module.h>
 #include <asm/io.h>
 #include <linux/comedidev.h>
 #ifdef CONFIG_COMEDI_RTL_V1
@@ -48,9 +40,14 @@
 #include <rtai_sched.h>
 #endif
 
+/* Change this if you need more channels */
+#define N_CHANLIST 16
+
+
 static int timer_attach(comedi_device *dev,comedi_devconfig *it);
 static int timer_detach(comedi_device *dev);
 comedi_driver driver_timer={
+	module:		THIS_MODULE,
 	driver_name:	"timer",
 	attach:		timer_attach,
 	detach:		timer_detach,
@@ -66,9 +63,11 @@ typedef struct{
 	comedi_device *dev;
 	comedi_subdevice *s;
 	RT_TASK rt_task;
-	sampl_t *data;
-	comedi_trig trig;
 	int soft_irq;
+	int n_chan;
+	int n_samples;
+	int chanlist[N_CHANLIST];
+	lsampl_t data[N_CHANLIST];
 }timer_private;
 #define devpriv ((timer_private *)dev->private)
 
@@ -86,9 +85,9 @@ static void timer_interrupt(int irq,void *d,struct pt_regs * regs)
 
 static inline void buf_add(comedi_device *dev,comedi_subdevice *s,sampl_t x)
 {
-	*(sampl_t *)(((void *)(s->cur_trig.data))+s->buf_int_ptr)=x&0xfff;
+	*(sampl_t *)((s->async->data)+s->buf_int_ptr)=x&0xfff;
 	s->buf_int_ptr+=sizeof(sampl_t);
-	if(s->buf_int_ptr>=s->cur_trig.data_len){
+	if(s->buf_int_ptr>=s->async->data_len){
 		s->buf_int_ptr=0;
 		comedi_eobuf(dev,s);
 	}
@@ -105,19 +104,25 @@ static void timer_ai_task_func(int d)
 	int i,n,ret;
 	int n_chan;
 
-	n_chan=s->cur_trig.n_chan;
+	n_chan=devpriv->n_chan;
 
-	for(n=0;n<my_trig->n;n++){
+	for(n=0;n<devpriv->n;n++){
 		for(i=0;i<n_chan;i++){
 			it->n_chan=1;
 			it->data=devpriv->data+i;
-			it->chanlist=my_trig->chanlist+i;
-
-			ret=comedi_trig_ioctl(devpriv->device,devpriv->subd,it);
+			it->chanlist=devpriv->chanlist+i;
 
+			ret = comedi_data_read(devpriv->device,devpriv->subd,
+				CR_CHAN(devpriv->chanlist[i]),
+				CR_RANGE(devpriv->chanlist[i]),
+				CR_AREF(devpriv->chanlist[i]),
+				&data);
 			if(ret<0){
 				/* eek! */
 			}
+
+			devpriv->data[i]=data;
+
 		}
 		for(i=0;i<n_chan;i++){
 			buf_add(dev,s,devpriv->data[i]);
@@ -316,7 +321,9 @@ static int timer_detach(comedi_device *dev)
 {
 	printk("comedi%d: timer: remove\n",dev->minor);
 	
+#ifdef CONFIG_COMEDI_RTL
 	free_irq(devpriv->soft_irq,NULL);
+#endif
 
 	return 0;
 }
-- 
2.26.2